Note: Images of the original pages are available through HathiTrust Digital Library. See http://mirlyn.lib.umich.edu/Record/008655736 CHAPTER PAGE I A Mysterious Tapping 7 II The Blue Face in the Night 24 III Lucile's Quick Action Gas 36 IV Trapped in the Old Museum 51 V A Catastrophe Averted 65 VI The Blue God 78 VII The Mystery Deepens 90 VIII A Strange Game of Hide-and-Go-Seek 1…
Or read it translated: 日本語 · 中文 · हिन्दी · Español · العربية · Français · বাংলা · Português · Русский · Bahasa Indonesia · اردو · Deutsch · Kiswahili · 한국어